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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
23 Dec 2021

Given information

Given that,    is a differentiable function and 

Step-by-step explanation

Step 1.
Let us prove the given statement:
 
           
 We substituted given expression for   
 
                   
  We multiplied,
                   
  We rewrote the fraction. 
                   
  We rewrote the limit as a sum of limits. 
                   
  We extracted   
                   
 
 We know that ,  
 
                   
If , when   then   
 
We used the rule above to simplify.
                   
 is differentiable so we can substitute   for  
                   

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